Question

Please tell me the ans and mention step too​

Answer 1

Answer:

$\frac{90}{360} \times 3.14 \times 800 - 400 \\ = \frac{1}{4} \times 314 \times 8 - 400 \\ = 314 \times 2 - 400 \\ = 628 - 400 = \bold{228}$

hope it helps you.....

Answer 2

Answer:

228

Step-by-step explanation:

Given question :

90 / 360 x 3.14 (20√2)² - (20)²

3.14 x 400 x 2 / 4 - 400

3.14 x 100 x 2 - 400

314 x 2 - 400

628 - 400

228